Many hosts you can consider legit/reliable/durable (or their upstream providers) have TOS prohibiting that particular type of use...covering their backsides to avoid excessive bandwidth or having to respond to takedowns or other legal process. Be very careful: Get it in writing that your intended use is fully permitted. And, if it is, make sure that if they are a reseller that their provider also expressly allows it as well.--"Dance like the photo isn't being tagged; love like you've never been unfriended; and tweet like nobody is following."